//
//  RMGeoHash.h
//
// Copyright (c) 2008-2009, Route-Me Contributors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
//   list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#import <Foundation/Foundation.h>
#import <CoreLocation/CLLocation.h>

typedef enum _RMGeoHashAtDirection {
	RMGeoHashAtRight = 0, RMGeoHashAtLeft, RMGeoHashAtTop, RMGeoHashAtBottom
} RMGeoHashAtDirection;


@interface RMGeoHash : NSObject {

}

+(NSString *) fromLocation: (CLLocationCoordinate2D) loc withPrecision: (NSInteger)precision;
+(void) convert: (NSString *)geohash toMin: (CLLocationCoordinate2D *)loc1 max: (CLLocationCoordinate2D *)loc2;
+(NSString *) adjacentOf: (NSString *)srcHash inDir: (RMGeoHashAtDirection) dir;
+(NSArray *) withNeighbors: (NSString *)locHashcode;

@end
